From: Pierre Ossman <drzeus@drzeus.cx>
Date: Sat, 16 Aug 2008 19:15:50 +0000 (+0200)
Subject: mmc_block: indicate strict ordering
X-Git-Tag: v2.6.28-rc1~701^2~11
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=91028954119e464ae42350658d46c204d781b484;p=linux-2.6-omap-h63xx.git

mmc_block: indicate strict ordering

The MMC block driver services requests one at a time and in strict
order. Indicate this to the block layer so that it can handle barriers
in an efficient manner.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
---

diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 5c8f037dca6..c25c975bdc3 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -131,6 +131,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
 	mq->req = NULL;
 
 	blk_queue_prep_rq(mq->queue, mmc_prep_request);
+	blk_queue_ordered(mq->queue, QUEUE_ORDERED_DRAIN, NULL);
 
 #ifdef CONFIG_MMC_BLOCK_BOUNCE
 	if (host->max_hw_segs == 1) {